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R. WRIGHT. PENCIL SHARPBNER.

N01 46,289. Patentedeb. 7, 1865.

Inf/afn NITED STATES PATENT GFFICE.

RUFUS WRIGHT, OF NEW YORK, N. Y.

PENCIL-SHARPENEP.;

Specification forming part of Letters Patent No. 46,289, dated February7, 1865.

sition, showing the' angular tiling-groove.v

Fig. 3 is an end elevation. Fig'. 4 is a view illustrative ot' theprocess of construction.

Similar vletters of' reference indicate corresponding parts in theseveral figures.

pencilsharpener in which thecutteris adapted to cut .all round or' atall points on-the part being sharpened at .once o'r at the sam'etime,

and to cut orshave iu akeen and-ismoothmanner, while tending to retain'the' pencil-in.A

a central position during thc sharpening operation, all as will behereinafterfi'ully explained-. 1

The following description willenable others skilled'finjthe art to which.my invention appertainsto'full y understand and use the same.

In .the accompanying..drawings, A represents a hollow spiral'euttcr,tapering in conformity with the contour o r shape which is given to theend of the pencil in sharpening. B is a bow or guard, which 'affords ahold for the finger and thumb, protects the cutter in vcase theAinstrument should be accidentally dropped,and prevents it from injuringthe pocket or other repository in which the sharpener may be carriedabout, b b are stripsv or arms encircling the larger -end of the cutterA, and connecting the ends ot'- the bow B.

When the pencil to bc sharpened is fairly insorted into the cutter A',the cutting-edges of the latter' actIA upon the part to be sharpened atall points on its periphery at once: or,- in

otherwords, while one partof the cutter is cutting or shaving at onesideanother part is at work on the other side, and the cutter,

thus operating, serves to retain the axis of the pencil in linewith thatot' itself'. The cuttingedge, being spiral, shaves obliquely to the'axis of the pencil' and toward the point simultaneously, and as the'pencil always maintains a central position, there isno danger ot'splintering or cutting into the woodl atene side,-

whieh is of frequent occurrence in the Zuse of Sharpeners which haveoblique cutters only, such cutters permitting the pencil to assume aposition at a slight angle with the cutter,

` and rendering it troublesome to keep the cen'- ters ofthe two in line.In one side ot' the bowguard B is a serrated or file groove, b', of an-I guiar form, in whichihe leadmay be pointed. 'lhe object of thisinvention'is to produce a Apencil sharpenerof the above construction issimple and cheap, and the entire instrument-may be constructed of- -`onepiece ot' figure may be cnt out with a die and the part A bent spirally,and then theparts B and b,

in the form represented in Figs. l and 3, by- .any adequate mechanism,after which the loose ends of the arms b may be soldered or otherwisesecured to the guard B.

Having thus described my invention, vthe following is what I cla-im asnew therein and desire to secure by' Letters Patent:

1. The spiral and.tapering cutter A.,"con structed. in the manner andemployed for the purpose herein specified.

2. The guard B, formed 'in' diie piece with the cutter A and employed toprotect the same andas a protection from the same, as

set forth.

3. In combination with a guardv B, constructed as herein described, theangular groove b, for pointing the lead. A

BUFUS WRIGHT.' Witnesses:

. OoTAvrUs KNIGHT, GEORGE R'oBERTs.

